Question about the exact quantity It is not by chance that problems with refrigerant in the cooling system occur among owners of household appliances. When Atlant refrigerator stops freezing, the compressor works without interruption, and there is no characteristic heat on the rear grille, this is a sure sign of depressurization of the circuit. Many people mistakenly believe that they can simply “add” gas, but modern systems require complete evacuation and charging strictly by weight.
The manufacturer Atlant uses various types of refrigerants in its models, most often it is isobutane (R600a) or tetrafluoroethane (R134a). The amount of the substance critically depends on the volume of the chamber, the number of compressors and the design features of a particular series. The average filling weight for single-compressor models varies from 60 to 140 grams, while dual-circuit systems can require up to 250 grams of the mixture.
Incorrect dosage leads to serious consequences: excess freon causes water hammer and leakage the compressor is out of order, and a deficiency leads to overheating of the motor and insufficient cooling. In this article we will look at how to determine the type of gas, where to find the factory tag with accurate data and why self-filling “by eye” is categorically unacceptable for the durability of the unit.
Types of refrigerants in Atlant technology
Modern Belarusian-made refrigerators are equipped with environmentally friendly gases that replace destructive ozone layer to freon R12. Understanding the chemical composition of the gas station is necessary not only for the environment, but also for the safety of work. Isobutaneused in most new models is explosive, which imposes strict restrictions on repair methods.
At the same time, older or larger models can be equipped with R134a. This gas does not burn, but requires the use of synthetic oil, which actively absorbs moisture. An error in choosing the type of oil or mixing different refrigerants will lead to the formation of acidic compounds that corrode the tubes from the inside.
- 🧊 R600a (Isobutane): flammable gas, requires refilling strictly by weight, used in 80% of modern models.
- ❄️ R134a (Tetrafluoroethane): non-flammable gas, requires thorough evacuation of the system is typical for middle-aged models.
- ⚙️ Mixtures: in rare cases, when retrofitting (gas replacement), analogues can be used, but the factory equipment does not provide for them.
⚠️ Attention: Never try identify the type of gas by smell or color. R600a is odorless, and leaking into a confined kitchen area with a concentrated spark can cause an explosion. Working with this gas requires professional equipment and ventilation.
Why can’t you mix R600a and R134a?
Mixing different refrigerants leads to unpredictable chemical reactions. The pressure in the system becomes unstable, the oil loses its lubricating properties, which is guaranteed to cause the compressor to fail within several weeks of operation.
Where to find information about the amount of freon
The most reliable source of information is the factory marking. The manufacturer is required to indicate the exact type and mass of refrigerant for each specific piece of equipment. You need to look for this data on a metal plate, which is usually located inside the refrigerator compartment.
Most often, the sticker or embossed plate is located on the left wall, behind the vegetable shelf or on the inside of the door. Look for the line Refrigerant or Refrigerant. The type of gas (for example, R600a) and its quantity in grams (for example, 100g or 130g) will be indicated next to it. It is these numbers that the technician should focus on when carrying out repairs.
If the sticker is worn off or missing, the exact volume can only be determined from the service documentation or model catalog number. However, even in this case, experienced technicians prefer to weigh the system or use a gauge station to monitor pressure and temperature, since factory tolerances may vary.
| Tag Location | What to Look for | Example Value |
|---|---|---|
| Inner Wall left | Refrigerant / R... | R600a 95g |
| Rear wall (outside) | Charge mass | 134a 140g |
| Technical passport | Section "Characteristics" | Isobutane |
Table of charging rates for popular series
Although each model is individual, you can identify average values for different series of refrigerators Atlant. This data is for reference only and is relevant if the factory markings are lost, but they should be used with caution for accurate filling.
The volume of filling directly depends on the height of the refrigerator and the number of evaporators. Two-chamber models with a system No Frost require more freon than simple “crying” refrigerators. The length of the capillary tube and the volume of the capacitor also influence.
The following are indicative data for common modifications. Remember that even within the same series (for example, 450), the weight of gas may differ depending on the year of manufacture and the installed compressor.
| Series / Model | Refrigerant type | Charging weight (g) | Features |
|---|---|---|---|
| Atlant 400 series | R134a | 130 - 145 | Two-chamber, one compressor |
| Atlant 450 series | R600a | 85 - 105 | Economical models, isobutane |
| Atlant 600 series | R600a | 100 - 120 | Tall models, increased volume |
| Atlant XM-4208 | R134a | 140 ± 5 | Classic two-chamber model |
| Atlant 700 series | R600a | 75 - 90 | Compact refrigerators |
Signs of leakage and lack of freon
You can understand what is missing in the system refrigerantby indirect signs even before calling a technician. The refrigerator is a closed circuit and gas cannot be consumed during operation. If there is less of it, it means that a hole has formed somewhere.
The first signal is a change in the operating mode of the compressor. The motor starts to work longer, trying to reach the set temperature, or, conversely, it turns on for a short time and immediately turns off, without having time to cool the chambers. In some cases, gurgling or hissing is heard that was not there before.
- 🌡️ Heat in the chamber: food begins to deteriorate, in the refrigerator compartment the temperature is above +10°C.
- ❄️ Lack of cold in the freezer: even with the compressor running, the evaporator is not covered with frost evenly.
- 🔥 Hot condenser: the back grill is either cold or hot only at the very beginning, which indicates only oil circulation.
- 💧 Wall swelling: if the evaporator inside the cabinet is corroded, the inner wall may swell refrigerator.
⚠️ Attention: If you notice an oily spot under the refrigerator or on the floor next to it, this is a sign of serious depressurization. The oil comes out along with the gas. You cannot operate such a unit - the compressor will burn out in a few hours of operation without lubrication and cooling.
The process of replacing and vacuuming the system
Replacing freon is a complex technical process that cannot be performed efficiently without special tools. You cannot simply “blow” gas into the system, since air and moisture remain in it, which, when frozen, will clog the capillary tube.
First, the technician must find the location of the leak. To do this, fill the circuit with nitrogen under pressure and listen for hissing or use a leak detector. After eliminating the fistula (by soldering copper tubes or replacing the evaporator), the system is necessary vacuum. This is the process of removing air and moisture vapor using a vacuum pump.
Evacuation process:1. Connecting the pressure gauge station.
2. Turn on the vacuum pump for 15-20 minutes.
3. Pressure control (should go into deep vacuum).
4. Turn off the taps and check for vacuum maintenance.
Only after creating a vacuum is refueling done. Scales for weighing a freon cylinder allow you to enter exactly as many grams as indicated in the passport. For R600a this is especially critical, since a deviation of 5-10 grams can disrupt the operation of the entire system.
☑️ Stages of high-quality refrigerator repair
Common mistakes during self-repair
Trying to save on the services of a service center, owners often make fatal mistakes. The most common of them is an attempt to refuel “by eye” or by pressure. The pressure in the system depends on the ambient temperature, so you cannot rely only on a pressure gauge without a scale.
The second mistake is ignoring replacement filter drier. This element is inexpensive, but its function is vital: it retains moisture and oil breakdown products. If the filter is not replaced during depressurization, moisture will quickly damage the new compressor.
The third mistake is using the wrong oil or mixing mineral and synthetic oils. This leads to the formation of a dense sediment (slag), which clogs the thinnest channels of the capillary tube. It is almost impossible to clean such a system; a complete overhaul is required.
⚠️ Attention: Technical characteristics and repair requirements may vary depending on the modification of the compressor. Always check the manufacturer's official documentation before starting work.
Is it possible to fill a refrigerator with R134a instead of R12?
Technically this is possible (retrofit process), but requires a complete flushing of the system, changing the oil to synthetic and installing a new filter. You can’t just replace the gas - the compressor will burn out.
Questions and answers (FAQ)
Is it possible to fill the Atlant refrigerator with freon yourself?
Theoretically, it is possible if you have scales, a vacuum pump, a pressure gauge station and skills in soldering copper pipes. However, due to the explosion hazard of R600a and the need for precise dosage, it is strongly recommended to call a certified technician.
How often should freon be added to the refrigerator?
In a working, sealed refrigerator, freon never runs out and does not require addition. The system is closed. If the gas has disappeared somewhere, it means that a hole has formed that needs to be found and soldered, and then the system must be refilled.
How much does it cost to refill an Atlant refrigerator with freon?
The price consists of the cost of a technician’s visit, diagnostics, leak detection, soldering, materials (freon, filter, oil) and the work itself. On average, repairs with refilling are more expensive than just “refilling,” which is often offered by unscrupulous craftsmen.
How dangerous is freon from a refrigerator for humans?
Modern freons (R600a, R134a) are low-toxic when inhaled for a short time in small quantities. However, R600a is explosive, and R134a can release phosgene (an asphyxiating gas) when in contact with an open flame. Large concentrations displace oxygen, causing suffocation.